Ring Sizing Guide
Ring Sizing Guide
Find Your Perfect Fit
Getting the right ring size is essential for comfort and security. Use our guide below to measure your finger at home, or visit a local jeweler for a professional fitting. If you're unsure, our team is always happy to help.
Method 1: Measure an Existing Ring
If you already own a ring that fits well, place it on a ruler and measure the inside diameter in millimeters. Then use the size chart below to find your size.
Method 2: String or Paper Strip
Wrap a thin strip of paper or string snugly around the base of your finger. Mark where the ends meet, then measure the length in millimeters. This is your circumference — use the chart below to convert it to a ring size.
Ring Size Chart
| US Size | Inside Diameter (mm) | Circumference (mm) |
|---|---|---|
| 4 | 14.9 | 46.8 |
| 4.5 | 15.3 | 48.0 |
| 5 | 15.7 | 49.3 |
| 5.5 | 16.1 | 50.6 |
| 6 | 16.5 | 51.9 |
| 6.5 | 16.9 | 53.1 |
| 7 | 17.3 | 54.4 |
| 7.5 | 17.7 | 55.7 |
| 8 | 18.1 | 56.9 |
| 8.5 | 18.5 | 58.2 |
| 9 | 18.9 | 59.5 |
| 9.5 | 19.4 | 60.8 |
| 10 | 19.8 | 62.1 |
Tips for Accurate Sizing
- Measure your finger at the end of the day when your fingers are slightly larger.
- Avoid measuring when your hands are cold — fingers shrink in cold temperatures.
- If you're between sizes, go with the larger size for comfort.
- Wide bands (over 6mm) typically require a half-size larger than your standard size.
Free Resizing
Not sure about your size? Don't worry — NYX Jewel offers complimentary resizing (up to +1 or -1 size) within the first year of purchase for eligible ring designs. Simply contact us at care@nyxjewel.com to arrange your resize.